Description Usage Format Details Source References
The Lalonde subset of DW treated units versus PSID (Panel Study of Income Dynamics) control individuals
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A data frame with 2675 observations on the following 10 variables.
treated
treated variable indicator
age
age
education
years of education
black
race indicator variable
married
marital status indicator variable
nodegree
indicator variable of not possessing a degree
re74
real earnings in 1974
re75
real earnings in 1975
re78
real earnings in 1978 (post treatment outcome)
hispanic
ethnic indicator variable
These two sets of treated and control units can be hardly matched.
see references
Dehejia, R., Wahba, S. (1999) Causal Effects in Nonexperimental Studies: Reevaluating the Evaluation of Training Programs, Journal of the American Statistical Association, 94, 1053-1062.
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